不同填充图案结构对横向负载条件下 3D 打印管材防撞性能的影响

IF 2.2 4区 工程技术 Q1 MATERIALS SCIENCE, TEXTILES
Mahmoud M. Awd Allah, Mohamed A. Abbas, Ali Saeed Almuflih, Samy F. Mahmoud, Marwa A. Abd El-baky
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引用次数: 0

摘要

本研究旨在探讨不同填充图案结构对准静态横向压缩载荷下三维打印管材的变形行为和防撞性能的影响。随后,在三维打印过程中使用聚乳酸(PLA)来创建拟议的管材。制作了五种不同的填充图案结构:圆形、方形、三角形、之字形和十字形图案,每种图案的填充密度均为 50%。随后,对印刷结构施加准静态横向压缩负载。对测试管的失效历史进行了跟踪,并提供了碰撞载荷和能量吸收与位移的响应。为进行耐撞性检查,测量了几个指标,即初始峰值载荷(\({F}_{text{ip}}\))、总吸收能量(AE)和比能量吸收(SEA)。此外,还采用了复杂比例评估(COPRAS)方法来确定最佳填充模式,以最大限度地提高防撞性能。分析结果表明,根据 COPRAS 分析,人字形填充模式的能量吸收({F}_{text{ip}}/g)、AE 和 SEA 分别为 2.13 kN、62.52 J 和 2.90 J/g,在所研究的模式中表现出最大的能量吸收性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the Influence of Different Infill Pattern Structures on the Crashworthiness Performance of 3D Printed Tubes Subjected to Lateral Loading Condition

The objective of this research is to investigate the effect of different infill pattern structures on the deformation behavior and crashworthiness performance of 3D-printed tubes under quasi-static lateral compression loading. Subsequently, polylactic-acid (PLA) was utilized in the 3D printing process to create the proposed tubes. Five distinct infill pattern structures were fabricated: circular, square, triangular, zig-zag, and cross patterns, each designed with a consistent infill density of 50%. Following that, quasi-static lateral compression loading was applied to the printed structure. The failure histories were tracked, and the crashing load and energy absorbed versus displacement responses were provided for the tested tubes. Several indications were measured to conduct the crashworthiness examination, i.e., the initial peak load (\({F}_{\text{ip}}\)), total absorbed energy (AE), and specific energy absorption (SEA). Furthermore, the complex proportional assessment (COPRAS) method, was employed to identify the optimal infill pattern for maximizing crashworthiness performance. The analysis showed that the zig-zag infill pattern with 2.13 kN, 62.52 J, and 2.90 J/g, respectively, for \({F}_{\text{ip}}\), AE, and SEA, showed the maximum performance in energy absorption among the investigated patterns, according to the COPRAS analysis.

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来源期刊
Fibers and Polymers
Fibers and Polymers 工程技术-材料科学:纺织
CiteScore
3.90
自引率
8.00%
发文量
267
审稿时长
3.9 months
期刊介绍: -Chemistry of Fiber Materials, Polymer Reactions and Synthesis- Physical Properties of Fibers, Polymer Blends and Composites- Fiber Spinning and Textile Processing, Polymer Physics, Morphology- Colorants and Dyeing, Polymer Analysis and Characterization- Chemical Aftertreatment of Textiles, Polymer Processing and Rheology- Textile and Apparel Science, Functional Polymers
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